Soldering-iron.



No. 707,2l2.l f Patented AugQle, |902.

- J. c. covEnT.

soLnEmnG mon.

(Appl canon filed Apr. 14, 1902.)

(Nn Model.)

hereby declare the following to bea iullfolfear,y u and exaetjdescription of the inv enti'o`n",x suelrv ,SPECIFICATION folmingpart of 1.'elctfs`rafent No. '707.212,` dated August 19'. 1.992.

. lApplication-filedApril 14, 1902..-eriallblorOZl (lrl model.)

` Be itknowu thatI,LJAMEs G. rCovERiga citil NewfYork,have invented certain new and use -v ful Improvements in Soldering-Irons pand-I do `as will enable others ski-lledintheart`to which Ivo it appertains to makeiand use the same. .l

. )'lhisfinvention relateslto "an improvement in soldering-irons, `audit isembodied in the y 'construction-and arrangementsof,partspres' t 1 lently to be deseribedtnd defined inthe claims.

The invention relatesfurore-particularly.to

vthat class ofsoldeiingironsshown in United s States' Letters PatentN. 283,575, granted to 'myself'on the 21st 4day of August,` 1883. In

said patent the forksjorvbranehesof thehan- '.'adjaeent faces, leaving `a relativelyjnarrow able bolt. My present invention'is'designed `eis made'to form a more-positive connection between the iron and the holder-or handle.

The present `inve'ntionalsorelates,toother features of constructionpresentlyte .bede-A rounding .the o'pen ing i`n'tl1e arm.-, This boss` ,is convenientlyv form'edivith sloping sides, and

scribed.4 In the aceompan'yingdrawings, Figure lis anel'evation showing the handportion partlyy in section. Fig. Z'represent's elevationsi',"rel speetively, ofthe innerfae's of-the Itwoforksjv or arms ofthe handleforf stern.' Fig. V3 fisan venlarged side.elevationfshowingparts broken` away, and. Fig. 4 isfaeross-Section taken on;

` .Inv solderingdrons itfhasbeenfusuvalheretofore to construct the handle orl holder portion'l of relatively hardim'etal', such-asjinalleable f iron orvsteel; andtoy elarnpthe sameonto therelatively soft copper p oint`th'e pressure on l" the Copper servingftobreakdown an`r`irregur veonneetion between?` thelhol'der and point'` members, but permitting the movement of larities and form a'elose joint. 'I -have'found,` however, thatit is'ad-vantageous to have this moredirectl y positive by'causingtheeontaet.- ing surfaces to penetrate into the relatively soft metal of the point," thereby vinsuring a `close while grasped Contact betweenthe ,two

y asan improvement onschjeon struction and` i one relative to'theotnervvhen vfofreeiis applied, andfit is desirable 11o-adjust -thelfpoint to an' angle. l .Toaecomplish` this des'ired result; I

which are carried by thestemA, with depresfsions C and C' and arrangethese depressions slightly eceentrieto the ends of thefork, as

shown in Fig. 2.' j B yf so' ar'rangzirigifl the de.v pressions themargin:or` flange lC isftapered gradually, formingthereby at the 'narrowest pointa biting ed ge, which gradually increases f in widthfto a' pointl dtilrlmtnlatically oppo-4 site its point.` These eutting'or biting vedges are varranged. in oppositejre'lation one to the otheronine respective farms'.' sojthatthenarroivportion'othe right-handfarinlwillb,eop i posite the broader. porti-on1`of' the'flange ofl its companion oropposite armlforpurposes preslentlyto bestated. j To fofrrnvteeth orabutting Ishonlders'fat different points' throughout the .flange C, suitable cuts'or depressions o 'aare iiliade', vconveniently inropposite' sides and at thejentl of the arms; landfowinzf,to thet'apered iformatitmk'of the a'ngeonie Wall-'of `the de'-V pr'es'sions lwill constituteatoothl o'fsufcierit iprominenee or'extension togbite into the metal of vthe point. Eachoflthe end portions of the arms is provided witha-eentralopening, and onthe arm B is formedl-alraised bossfD, surlits` borejis threadedff i Thstfeafture is in its nature an improvementon1 Athe `construction sh'own'in my aforesaid patent smooth surface is provided and "an extended seat formed'for the nnitingfseremwhicjh `is designatedatE. It hasbee'n-found advantageous` ,to'have a sinoothsurfaeelatfthepoint of conpetition, sothatin insertingthetool into and ffer`e With the movementof 'the.to0l.` f

The point F 'is conveniently of [copper vandy is'eonstructed with Ian ear or tongue v1 3", ofvcir cular,formationyhaving'ilatflsides. The di ameter ofthe ear or tongue is substantiallyl fas shovvn'in Fig. 4. 'The langeson the holder thatofethe ends ofthe forked/ portionv-of the holder, its edgeprojecting `jsli(,fll'tly;beyond. loo

`areso positioned relative tofthe tongue IF l that their securing Ledgespengage approximately the outer edge of the opposite faces of 55 s form vthe inner face-ofl*thefarms1B. and B,"w

the tongue, so that the tendency willbe for the flanges to project slightly into the edges of it is desired to move the point to an angle it` is only necessary to press the same, and vin so doing the flanges on one side will tend to positively seat onto the metal of the point, while on the other side the friction of the parts will assist in maintaining the required friction. Should the point be turned in an opposite direction, a similar result would follow, owing to the opposite position or location of the retaining-lianges. The edges of the walls of the cross-grooves in the flanges serve as teeth, which take hold of the metal of the point slightly, and should the iron be adjusted repeatedly for any great length of time a Welldefined seat is formed in the metal of the point with which the slight edges or teeth will engage.

It has been found that the construction of an iron as above described will form a very secure joint, and one wherein the point is firmly held against all movement either lateral or pivotal, and that by setting the screwbolt the point can be moved and will be retained in its various positions of adjustment without the necessity of tightening the bolt. Each time the point is adjusted the taper of the flanges causes them to readily enter the relative soft metal of the point and to thereby increase the frictional engagement between the parts.

In construction I have found it desirable to form the holder with a shank having longitudinal ribs throughout the length thereof and on the lower end have formed a series of teeth G, with inclined and transverse edges,

"the transverse shoulders or edges being presented upward or toward the point of the iron. By driving the handpiece H onto the shank ot' the holder, a suitable opening having first been prepared, these teeth will serve to grasp the handpiece,which is conveniently of wood,

and prevent the same from being detached.

Other forms of connection may, however, be

, withoutdeparting from the nature and principle of the invention.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In asoldering-iron, the combination with a holder having separated arms at its ends each formed with penetrating edge flanges on its inner face, said flanges having crossgrooves therein and a boss formed on the outer face ot` one of the arms having a threaded interior, a point having atongue fashioned to fit between the arms and be engaged by the flanges at or near the outer edge of the tongue,`

and a screw-bolt passing through the arms and tongue having its end seated in the boss; substantially as described.

2. In a soldering-iron, the combination with a hold erhavin g separated arms at its end each provided with engaging flanges having a series oi cross-grooves the edges of the walls ol' which constitute teeth therein, a solderingpoint having a fiat-sided tongue, and means for securing the tongue between the flanges of the arms, substantially as described.

3. In asoldering-iron, the combination with aholder having separated arms at its ends each formed with holding edge flanges on its inner face, and av boss formed on the outer face of one of the arms having a threaded interior, a point having a tongue fashioned to fit between the arms and be engaged by the flanges at or near the outer edge of'lhe tongue, and a screw-bolt passing through the arms and tongue having its end sealed in the boss, substantially as described.

4. In asoldering-iron, the combination with a holder having separated arms formed with holding-flanges and a pivot secured between the flanges, of a handpiece into which the end `of the shank of the holder fits, and a series of teeth on the Opposite edges of' the end of the shank having inclined outer and straight upper edges for engaging the handpiece.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES C. COVERT. Witnesses:

L. S. BACON, L. M. GoTwALD.

ICO 

